Radio: The Busy Air, Apr. 26, 1948

¶ Theater television became a reality. An audience at Broadway's
Paramount Theater watched a telecast of a boxing bout in Brooklyn on
the theater's screen. It was the first time that full-screen television
had been shown in a major theater as the event was taking place.The
image was transferred from tube to film by a special photographic and
developing process, then "fed continuously to a projector and flashed
to the screen. The whole converting operation (tube-to-film-to-screen)
took only 66 seconds. Images were bright and well-defined, and the
sneak preview was hailed...